Take your comment, and put it into data. Derive everything from it. I just happen to like AoH's, as it's easy to extend it out more.

#/usr/bin/perl
use strict;
use warnings;

use Readonly;

my @volunteers = (
  { name => "Ben",   chunks => 5 },
  { name => "Scott", chunks => 4 },
  { name => "Jim",   chunks => 1 },
);
my $current = 2192;
Readonly my $CHUNKSIZE => 200;

use List::Util qw(sum);
my $total_volunteer_chunks = sum map { $_->{chunks} } @volunteers;

sub volunteer_for {
  my $n = shift() % $total_volunteer_chunks;
  for my $v (@volunteers) {
    $n -= $v->{chunks};
    if ($n < 0) {
        return $v;
    }
  }
}
  

for my $chunk (0..98)
{
  my $end = $current + $CHUNKSIZE;
  my $victim = volunteer_for($chunk)->{name};
  print "$current-$end\t\t$victim\n";
  $current = $end + 1;
}
[download]

Update: Fixed the code. It works now.